Ch 3 Examining Relationships

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Chapter 3: Examining Relationships (Total Time: 10 Days)

**Ch 3 Book PDF**

• Scatterplots
o Scatterplots – making and interpreting
• Correlation
o Correlation and facts about it
• Least-Square Regression
o Least squares regression facts; r 2
o Residuals, outliers, influential observations

KA 62: Regression Line Example


KA 63: Second Regression Example


KA 64: R-Squared or Coefficient of Determination


KA 65: Calculating R-Squared


KA 66: Covariance and the Regression Line


KA 57: Squared Error of Regression Line




KA 58; Proof (Part 1) Minimizing Squared Error to Regression Line


KA 59: Proof Part 2 Minimizing Squared Error to Line


KA 60: Proof (Part 3) Minimizing Squared Error to Regression Line


KA 61: Proof (Part 4) Minimizing Squared Error to Regression Line